#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main() {
  char * ch = malloc(1);
  *ch = 98;
  printf("%p\n", ch);
  printf("%c\n", *ch);
  free(ch);
  // *ch = 99;
  printf("%p\n", ch);
  printf("%c\n", *ch);


  return 0;
}